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Heteronuclear coherence transfer in solid-state nuclear magnetic resonance using a γ-encoded transferred echo experiment.
- Source :
-
Journal of Chemical Physics . 11/1/2003, Vol. 119 Issue 17, p8916. 11p. 1 Diagram, 5 Graphs. - Publication Year :
- 2003
-
Abstract
- A novel type of solid-state nuclear magnetic resonance experiment for efficient transfer of coherence between different nuclear spin I=1/2 species under magic-angle spinning conditions is introduced. The method combines the attractive features of γ-encoded dipolar recoupling [Nielsen et al., J. Chem. Phys. 101, 1805 (1995)] with coherence transfer mediated by a longitudinal spin-order operator in a transferred echo experiment. Using two-channel rotary resonance recoupling with different phase and amplitude modulation schemes, the transferred echo sequence can be tuned to achieve dipolar recoupling and coherence transfer over a well-defined range of chemical shifts while keeping the ratio between the rf field strength and the sample spinning frequency relatively low. The method, referred to as gamma-encoded transfer echo, is described analytically, by numerical simulations for various different spin systems, and experimentally by [sup 15]N to [sup 13]C coherence transfers in a powder sample of [sup 13]C, [sup 15]N-labeled glycine. © 2003 American Institute of Physics. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COHERENCE (Physics)
*NUCLEAR magnetic resonance
*ECHO
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 119
- Issue :
- 17
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 11122963
- Full Text :
- https://doi.org/10.1063/1.1613933